Improvement in machines for doubling over the ends of metal bands



s. H. GILMAN. MACHINE FOR. DOUBLING- OV ERTHE ENDS 0F METAL-BANDS.

No.173,117. Patented Feb. 8,1876.

Fig.1. 1-1 5.

Witnesses; I .iiwcaull'or;

N.PEI'ERS, PHDTO-LITHOGRAFMER, WASHINGTON. D, C

UNITED STAT-Es P TENT OFFICE.

" SAMUEL ILGILMAN, OF NEW ORLEANS,LOUISIANA,. ASSIGNOR TO LOUISIANACOTTON-TIE GOMPANYL IMPROVEMENT lN MACHINES FOR'DOUBLING OVER THE ENDS0F METAL BANDS.

Specification forming part of Letters Patent No. 173,117, dated February8, 1876; application filed November 27, 1875.

To allwhom it may concern:

Be it known that I, SAMUEL H. GILMAN, of

the city of New Orleans, in the parish of-0rleans and, State ofLouisiana, have invented 1 a new and useful Machine for Doubling Overthe Ends of Iron or other Metal Bands; and I hereby declare thefollowing to be a full, clear, and exact description of the same,reference being bad to the accompanying .drawings forming part of thisspecification, in

4 Which Figure 1 represents a plan view, Fig. 2 a side elevation, andFig.3 a rear elevation,,of my machine. Fig. 4 is a detail view, show inga part of my invention; and Fig. 5,'a view of a strap or band of metal,showing the end as it appears when turned down by my improved 1 machine.

The object of my invention is to double or turn over the ends of metalbands, such as are used for bahug purposes, in order to enlarge theirends when such bands are to be used with a bale-tie, the same as orsimilar to that which was patented by me February 2, 1875.

To accomplish this object I construct a machine described as follows: Inthe drawings,

L A is a shaft, supported horizontally. above a bed, B, by the standardsK, and provided upon one end with a lever-and handle, L. One end of theshaft A is extended beyond the standard K, with a considerably increaseddiameter, so as to present a circular head, It, to the outer face ofwhich is attached a folder, C. This folder is simply an eccentricprolongation of the'shaft A beyond the circular head, and is made bycutting away portions of the head in such a'ma'nner as to form aprojection having three rectangular sides, and a fourth side, which isrounded in the arc of a position, exactly on a plane with the centralhorizontal diameter of'the-shaft A. D is a lever-, bar, whose uppersurface is exactly on a plane with the upper edge of the folder 0, andwhose head abuts against the inner face thereof, as shown in black linesin Fig. 2.

This lever-bar D is provided upon its innerface with v a guide ordovetail tongue, m, fitted to receive the sliding stop E, (shown inFig.'4,) andis pivoted between its head and longitudinalgcenter toafulcrum-stud, d.

I find that ,about three inches from the front end of the lever-bar isthe most satisfactory place at which to fix its fulcrum.

In front of the stud d the under side of the lever, D is slightlyrounded upward, so as to allow of a limited vertical movement, and atits rearend a weight, I, is attached to steady the lever, and alsofacilitate bending over the ends of bands, by adding to the pressure ofthe head of the lever against the folder 0 whenthe machine is beingoperated. Eis a slidin g stop, provided with the dovetail groove 6,designed to travel upon the guide ortongue m, upon the inner side'of thelever D. This sliding stop is'provided with a slot, 0, near its center,the length of which is regulated by the amountof longitudinal movementitis de sired the slide shall have, and through which slot the pivot-boltd of the lever D passes w loosely. The front end of the slide E isextended upwardly and outwardly, forming a shoulder or projection, f,above the lever D, as clearly shown in Figs. 2 and 4, and between it andthe bar D is a space, in which the band to be bent moves forward duringthe operation of the machine, and which space is of just such capacityas will snugly receive the metal strip or hand between the shoulder fand said bar. The thickness of the shoulder f and the leverD at theirforward ends is the same, and both across their, face are nearly equalto the length of the folder 0.

The front end of this shoulder or projection on the slide E presents aflat face, the crossdiameter-of which equals the length of the folder 0,and the vertical diameter of whiclr corresponds with the diameter of thenarrowest of the two unequal sides of the folder 0, and when the machineis at rest this face 00- cupies a position directly above, and is upon avertical plane with theface of the head of the lever D.

The angle formed by the parts 0 D and f, where they come together, isthus brought nearly, if not exactly, on a line with the axis of theshaft A.

A spring, S, is provided for moving the slide E back into place, whenthe pressure of the folder 0 against its forward end is withdrawn.

0 is a bent stud or arm, having a shoulder, t,

upon its lower end, and is attached to'the lever D in such manner thatthe shoulder will overhang the upper face of the same, and so form anopen groove, t, in which to receive, retain in position, and guide theforward movement of the band.

, On the upper end of. this bent stud or arm is pivoted the elbow-shapedpawl J, the upper projecting end of which is weighted, in order to holdthe foot of the pawl down upon the band placed underneath it during thepro-' cess of-turning over the end thereof, and thus prevent it slippingback during the operation of the machine.

The manner in which my machine is operated is as follows: When thevarious parts occupy their normal position, as shown in Fig. 2, a bandis placed underneath the shoulder 25, and pawl j, and shoulder f, sothat the end to be turned over will extend about half-way across theupper edge of the folder 0. The lever L is now turned in the directionindicated by the arrow, and the folder presses the end of the bandupward against the face of the shoulder f of stop E, forming a rightangle. As the movement progresses, the stop E yields to the continuedpressure of the folder (3, which turns upon its upper inner angle as acenter, and the band is forced over and downward until its end iscompletely flattened down upon itself, the pawl J preventing the bandfrom slipping with the backward motion of the slide, and the weight Iadding suffi cient pressure to accomplish this object.

When the lever L is brought back to its original position, the spring Simmediately returns the slide E into place, which slide, at the sametime, pushes the band forward upon the folder 0, ready for a repetitionof the I ward slipping of the band in the act of being bent.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination of the folderO, at-

tached to shaft A, and lever-bar D, and stop E, between which bar andstop the band to be doubled passes, whereby the folder 0, lever-bar D,and stop E, respectively, present one corner or, angle thereof in a'line with the longitudinal axis of the shaft A, preliminary to the actof bending the band, substantially as described.

2. I claim the sliding stop E, arranged in relation to the shaft A, sothat the angle formed by its bottom and front surface shall be in linewith the longitudinal axis of th shaft A, substantially as described.

3. I claim the sliding stop E, in combination with the lever-bar D andfolder 0, whereby the metal band, in the act of being bent, is

held firmly upon the lever-bar D, substantially as described.

4. I claim the combination of the lever-bar SAMUEL H. GILMAN.

Witnesses:

JNo. B. LAFITTE, JAS. A. LAFITTE.

